Improvement in winding ratchets and pawls for clocks



a; H. BLAKESLEY.

Winding Ratchets and Pawls for Giocks.

N0.155,4H, Patented Sep:.29,1874.

u i y "T WITNESSES. INVENTOR UNITED STATES PATENT OFFICE.,

GILBERT H. BLAKESLEY, OF BRISTOL, CONNECTICUT.

IMPROVEMENT IN WINDING RATCHETS AND PAWLS FOR CLOCKS.

Specification forming part of Letters Patent No. 155,411, datedSeptember 29, 1874 application led January 14, 1873.

To all whom t may concern:

Bc it known that L GILBERT H. BLAKEs- LEY, of Bristol, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Clocks, of which the following is such a full, clear,and exact description as will enable others skilled in the art to makeand use it, reference being had to the accompanying drawings, which formpart of same.

My invention relates to an improvement in the winding mechanism ot'clocks and other timepieces.

Figure l is a front View of a portion of a clock-moven1ent whichembodies my invention; Fig. 2, a sectional view on line w af, Fig. l.

My invention consists in certain combinations and arrangements ofdevices and appliances, as hereinafter set forth and claimed, in whichfA represents the front frame-plate of the clock-movement. The Wheels,hammers, iiy and striking mechanism of this movement being substantiallylike those in common use, it is deemed unnecessary to describe, orrepresent them in the drawings. B B are the driving-springs, to theshafts O of which are attached ratchet-wheels F, into whichratchetwheels engage pawls S. The ratchetwheel F is provided with a hub,q, which passes through the plate A, and upon the end of said hub issecured firmly a dishing-spring,

r, which retains the ratchet in the plate A, so that it cannot beaccidentally detached therefrom, although the main shaft C may bewithdrawn from the ratchet, while it is free to revolve with its shaftwhen the square part of said shaft is passed through the square hole inthe hub of the ratchet. In the under side of the pawl S is formed acircular recess or depression,t,Fig. 2,in which is placed a coiledspring, u, with one end hooked into a hole in the plate A, and the otherend into the pawl S, and thereby the pawl is made to constantly bearagainst and engage with the teeth ofthe ratchet F.

Thus, the spring is wholly concealed from sight, and the ratchet, pawl,and spring are always attached to the plate, so that detaching the otherparts of the clock will not disarrange them.

My invention is equally applicable to either the time or strike side ofa clockanovement.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The ratchet-wheel F, secured to the frameplate A by means of its hub qand spring r, in combination with its pawl S and concealed spring a,also permanently secured to the plate A,.substantially as described.

GILBERT H. BLAKESLEY.

Witnesses:

HENRY A. MITCHELL, WM. I. Preo'r'r.

